Package org.apache.fop.complexscripts.fonts

Class GlyphSubstitutionTable.ChainedContextualSubtable

java.lang.Object

org.apache.fop.complexscripts.fonts.GlyphSubtable

org.apache.fop.complexscripts.fonts.GlyphSubstitutionSubtable

org.apache.fop.complexscripts.fonts.GlyphSubstitutionTable.ChainedContextualSubtable

All Implemented Interfaces:

Comparable, GlyphSubstitution

Direct Known Subclasses:

GlyphSubstitutionTable.ChainedContextualSubtableFormat1, GlyphSubstitutionTable.ChainedContextualSubtableFormat2, GlyphSubstitutionTable.ChainedContextualSubtableFormat3

Enclosing class:

GlyphSubstitutionTable

private abstract static class GlyphSubstitutionTable.ChainedContextualSubtable
extends GlyphSubstitutionSubtable

Field Summary

Fields inherited from class org.apache.fop.complexscripts.fonts.GlyphSubtable

LF_IGNORE_BASE, LF_IGNORE_LIGATURE, LF_IGNORE_MARK, LF_INTERNAL_USE_REVERSE_SCAN, LF_MARK_ATTACHMENT_TYPE, LF_RESERVED, LF_RIGHT_TO_LEFT, LF_USE_MARK_FILTERING_SET

Constructor Summary

Constructors

Constructor	Description
ChainedContextualSubtable(String id, int sequence, int flags, int format, GlyphCoverageTable coverage, List entries)

Method Summary

Modifier and Type	Method	Description
(package private) static GlyphSubstitutionSubtable	create(String id, int sequence, int flags, int format, GlyphCoverageTable coverage, List entries)
abstract GlyphTable.RuleLookup[]	getLookups(int ci, int gi, GlyphSubstitutionState ss, int[] rv)	Obtain rule lookups set associated current input glyph context.
int	getType()
boolean	isCompatible(GlyphSubtable subtable)	Determine if a glyph subtable is compatible with this glyph subtable.
boolean	substitute(GlyphSubstitutionState ss)	Perform glyph substitution at the current index, mutating the substitution state object as required.

Methods inherited from class org.apache.fop.complexscripts.fonts.GlyphSubstitutionSubtable

getTableType, getTypeName, substitute, substitute, usesReverseScan

Methods inherited from class org.apache.fop.complexscripts.fonts.GlyphSubtable

compareTo, equals, getClasses, getCoverage, getCoverageIndex, getCoverageSize, getEntries, getFlags, getFlags, getFormat, getGDEF, getLookupId, getSequence, getTable, hashCode, resolveLookupReferences, setTable, usesReverseScan

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ChainedContextualSubtable

public ChainedContextualSubtable(String id,
 int sequence,
 int flags,
 int format,
 GlyphCoverageTable coverage,
 List entries)

Method Details

getType

public int getType()

Specified by:

getType in class GlyphSubtable

Returns:

this subtable's type

isCompatible

public boolean isCompatible(GlyphSubtable subtable)

Determine if a glyph subtable is compatible with this glyph subtable. Two glyph subtables are compatible if the both may appear in a single lookup table.

Overrides:

isCompatible in class GlyphSubstitutionSubtable

Parameters:

subtable - a glyph subtable to determine compatibility

Returns:

true if specified subtable is compatible with this glyph subtable, where by compatible is meant that they share the same lookup type

substitute

public boolean substitute(GlyphSubstitutionState ss)

Perform glyph substitution at the current index, mutating the substitution state object as required. Only the context associated with the current index is processed.

Specified by:

substitute in interface GlyphSubstitution

Overrides:

substitute in class GlyphSubstitutionSubtable

Parameters:

ss - glyph substitution state object

Returns:

true if the glyph subtable was applied, meaning that the current context matches the associated input context glyph coverage table

getLookups

public abstract GlyphTable.RuleLookup[] getLookups(int ci,
 int gi,
 GlyphSubstitutionState ss,
 int[] rv)

Obtain rule lookups set associated current input glyph context.

Parameters:

ci - coverage index of glyph at current position

gi - glyph index of glyph at current position

ss - glyph substitution state

rv - array of ints used to receive multiple return values, must be of length 1 or greater

Returns:

array of rule lookups or null if none applies

create

static GlyphSubstitutionSubtable create(String id,
 int sequence,
 int flags,
 int format,
 GlyphCoverageTable coverage,
 List entries)